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Thread: APS-C lens on A7RII ??

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    APS-C lens on A7RII ??

    I've been thinking about getting an APS-C lens to put on my A7RII to shoot weddings.
    The large raw files are overkill.
    Just turning on APS-C framing means using existing lenses, 16-35, 24-70 and 70-200 in a different mix.

    There are a couple of Zony APS-C lenses that look attractive as alternatives.

    The 16-70 F4 would be very similar to the Canon 24-105 I loved. That focal range also covers about 90% of what I use for wedding coverage.

    The added benefit, as I understand it, is that when mounting an APS-C lens the camera automatically switches to the smaller area. Then when putting a full frame lens on it automatically switches back. That would mean I could use the APS-C lens for most of the shooting and switch to an FE lens when needed for larger files.

    Is it worth the effort?

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    Re: APS-C lens on A7RII ??

    http://www.photozone.de/sony_nex/901...0f4oss?start=2

    Of all the blue labelled duds churned out by sony, this appears to be the worst. Avoid.

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    Re: APS-C lens on A7RII ??

    Why not an adapter + that EOS zoom?

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Vivek View Post
    http://www.photozone.de/sony_nex/901...0f4oss?start=2

    Of all the blue labelled duds churned out by sony, this appears to be the worst. Avoid.
    Unfortunate write up. If the comments are anything to go by, half are happy with it. So am I. I can't comment on the OP's use of it but on an a6000 it's a versatile companion. Can it match fixed focal equivalents? Of course not but this 24-105 f/4 (35mm eq.) is just as good as say, the Canon offering.
    To the OP, borrow or hire one and get the feel for it; you might just find it's what you need.

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    Re: APS-C lens on A7RII ??

    If one has the time, patience and access to a vendor with 30day return for full refund possibility, it sure might be worth a shot. May be one would get lucky within 4-5 samples. If it is OK with the first sample itself, that is a lottery.

    That is assuming sample variations at play.

    Photozone' s reply in their Q&A section would indicate that SOny considers the sub standard performance "within specs". That is scary.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Vivek View Post
    Why not an adapter + that EOS zoom?
    The 24-105 with a metabones IV is still a bit slow focusing.
    Also, the objective is to get smaller file sizes. The APS-C frame accomplishes that but then the angle of view is too narrow.

    That's the reason for looking at the APS-C lenses.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by dmward View Post
    The 24-105 with a metabones IV is still a bit slow focusing.
    Also, the objective is to get smaller file sizes. The APS-C frame accomplishes that but then the angle of view is too narrow.

    That's the reason for looking at the APS-C lenses.
    I'm not quite sure, but I think that one can program a button to change the A7r2 from APSC to FF and back.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Annna T View Post
    I'm not quite sure, but I think that one can program a button to change the A7r2 from APSC to FF and back.
    I just went through the menu options and there is not way I could find to assign the ability to change APS-C / FF via a button or function menu.
    Right now its more the idea of having a smallish lens with the field of view range that I use most often when covering weddings.

    The 16-35 when recomputed is not quite right and the 24-70 is too narrow FoV at the 24mm end.
    Last edited by dmward; 7th February 2016 at 08:41.

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    Re: APS-C lens on A7RII ??

    On my Mk I, the feature in question can't be mapped to a button but I'm not sure I'd want to.

    Gear tab > 5 > APS-C Size Capture [On]

    Will do what you want. But for now I have the feature switched off because sometimes I like to go a bit wider than my SEL20F28 officially supports, even though it gets pretty soft.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Vivek View Post
    Carl-Zeiss Vario-Tessar T* E 16-70mm f/4 ZA OSS ( Sony SEL1670Z ) - Review / Test Report - Sample Images & Verdict

    Of all the blue labelled duds churned out by sony, this appears to be the worst. Avoid.
    Vivek - I guess it could be a QC issue b/c the copy I've used has been excellent.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by dmward View Post


    Is it worth the effort?
    Personally I think paying about 800 for the 16-70 together with an a6000 to have on one shoulder and the A7 with, say a 55 on the other for weddings is certainly worth the effort and would save faffing about with menus in the middle of a ceremony.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by bipbip View Post
    Personally I think paying about 800 for the 16-70 together with an a6000 to have on one shoulder and the A7 with, say a 55 on the other for weddings is certainly worth the effort and would save faffing about with menus in the middle of a ceremony.
    With the A6300 just announced the idea of a crop camera has been rattling around in my head.

    If I like the APS-C lens on the A7RII the A6300 is something to look at as well.

    Part of that will depend on how the A6300 handles raw files and their size.

    With the Canon 5DIII is could store large raw on the CF card and small raw on the SD card.

    With the A7RII the uncompressed raw files are quite large compared to the APS-C. More than twice the size.

    Considering that the overwhelming majority of wedding images are either viewed either electronically or at relatively small prints sizes the A7RII file resolution is overkill.

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    Re: APS-C lens on A7RII ??

    Good Sony listened and released uncompressed RAW, next request is for Sony to bring out an sRAW option

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Vivek View Post
    http://www.photozone.de/sony_nex/901...0f4oss?start=2

    Of all the blue labelled duds churned out by sony, this appears to be the worst. Avoid.
    What are "all" the others?

    - Marc

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by dmward View Post
    With the A6300 just announced the idea of a crop camera has been rattling around in my head.

    If I like the APS-C lens on the A7RII the A6300 is something to look at as well.

    Part of that will depend on how the A6300 handles raw files and their size.

    With the Canon 5DIII is could store large raw on the CF card and small raw on the SD card.

    With the A7RII the uncompressed raw files are quite large compared to the APS-C. More than twice the size.

    Considering that the overwhelming majority of wedding images are either viewed either electronically or at relatively small prints sizes the A7RII file resolution is overkill.
    Since I can't seem to fully retire from weddings and events (To quote Micheal from God Father III, "I get out, and they drag me back in" ... after I had sold my A99 system ... I have committed to the Sony A7 system using the A7R and A7R-II.

    I like your thinking, and have considered using APSc with a versatile zoom like you mentioned.

    Question: doesn't the camera sense when an APSc lens is mounted and automatically shoot crop frame?

    If not, (and you can't set a custom button to toggle between FF and APSc), I'd say that we could set the camera menu to display last selection so when you press the menu button it displays the FF or APSc choice first. I currently use this technique to first display "Setting Effect On ... Setting Effect Off" when I am using a radio sender with studio strobes at a wedding so I can toggle back and forth between shooting with off-camera lighting or just working with available light.

    I'd like to know how this lens performs on a FF sensor. I wonder whether use of the center portion of the FF sensor would make any difference given the angle of micro lenses due to the close flange distance?

    Let us know if you discover anything.

    Thanks,

    -Marc

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    Re: APS-C lens on A7RII ??

    When you set the APSC size to [auto] in the menu item mentioned above it will be as you want with FF for the FF lenses then go to crop mode when an apsc lens is attached or when there is too much vignetting on a FF lens.

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    Re: APS-C lens on A7RII ??

    I switched from Auto to FF, since each time I was mounting a legacy lens it would switch to APSC (aka Contax G lenses with smart adapter, or M lenses with Novoflex adapter).
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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Annna T View Post
    I switched from Auto to FF, since each time I was mounting a legacy lens it would switch to APSC (aka Contax G lenses with smart adapter, or M lenses with Novoflex adapter).
    +1. Thanks.
    With best regards, K-H.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Annna T View Post
    I switched from Auto to FF, since each time I was mounting a legacy lens it would switch to APSC (aka Contax G lenses with smart adapter, or M lenses with Novoflex adapter).
    Anna,
    I expect that there is some communication between the lens and the body to implement the Auto switching and that the communication is lost with the adapters so the camera thinks APS-C is required.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by Annna T View Post
    I switched from Auto to FF, since each time I was mounting a legacy lens it would switch to APSC (aka Contax G lenses with smart adapter, or M lenses with Novoflex adapter).
    Does not happen to me with Leica (LTM, M), Nikon, Olympus etc lenses in the "auto" mode. There has to be severe vignetting from the lens (or the adapter) for the camera to switch to APS-C automatically.

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    Re: APS-C lens on A7RII ??

    Quote Originally Posted by fotografz View Post
    I like your thinking, and have considered using APSc with a versatile zoom like you mentioned.

    Question: doesn't the camera sense when an APSc lens is mounted and automatically shoot crop frame?
    Marc,
    I found a 16-70 and an 18-105 used at B&H. They are on the way for testing.
    My inclination is toward the 18-105 since its a wider zoom range. The 16-70 is probably the better lens optically and construction.

    I'll test them, to ensure auto switching works and also to see how they perform with AF, etc.

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    Re: APS-C lens on A7RII ??

    After some testing with the APS-C lenses and more thinking I've come to realize its counter productive to think about getting smaller file size via APS-C.

    If I use the APS-C lens on an A7RII, the pixel count is just a bit less then the 24mp that the A7II or A6300/A6000.

    I could use the APC-S on an A7II and get smaller. But, I'd prefer to continue shooting it FF and living with the 24mp files.

    So, after this diversion, it looks like the lenses will be going back and I'll keep doing what I've been doing.

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